APA

Conference on Aquatic Weeds and Their Control, . (1981). Proceeding of the Conference on aquatic weeds and their control. Gran Bitain: Association of Applied Biologists; Association of Drainage Authorities; National Water Council.

Chicago

Conference on Aquatic Weeds and Their Control, . 1981. Proceeding of the Conference on aquatic weeds and their control. Gran Bitain: Association of Applied Biologists; Association of Drainage Authorities; National Water Council.

Harvard

Conference on Aquatic Weeds and Their Control, . (1981). Proceeding of the Conference on aquatic weeds and their control. Gran Bitain: Association of Applied Biologists; Association of Drainage Authorities; National Water Council.

MLA

Conference on Aquatic Weeds and Their Control, . Proceeding of the Conference on aquatic weeds and their control. Gran Bitain: Association of Applied Biologists; Association of Drainage Authorities; National Water Council. 1981.